Download System Update Readiness Tool for Windows Server 2008 R2 Release Candidate for Itanium-based Systems (KB947821) [May 2009] from Official Microsoft Download Center

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System Update Readiness Tool for Windows Server 2008 R2 Release Candidate for Itanium-based Systems (KB947821) [May 2009]

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This tool is being offered because an inconsistency was found in the Windows servicing store which may prevent the successful installation of future updates, service packs, and software.